IDXX vs. T

Last updated Jun 9, 2026

IDXX (IDEXX Laboratories, Inc.) and T (AT&T Inc.) are both stocks. IDXX operates in Diagnostics & Research (Healthcare), while T operates in Telecom Services (Communication Services). Over the past 10 years, IDXX returned 20.23%/yr vs 2.86%/yr for T. At a 0.18 correlation, their price movements are largely independent.

Performance

IDXX vs. T - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in IDEXX Laboratories, Inc. (IDXX) and AT&T Inc. (T). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IDXX achieves a -17.05% return, which is significantly lower than T's -7.40% return. Over the past 10 years, IDXX has outperformed T with an annualized return of 20.23%, while T has yielded a comparatively lower 2.86% annualized return.

IDXX

• 1D: -0.18%
• 1M: 0.19%
• YTD: -17.05%
• 6M: -20.59%
• 1Y: 6.91%
• 3Y*: 7.57%
• 5Y*: -0.19%
• 10Y*: 20.23%

T

• 1D: -1.10%
• 1M: -10.57%
• YTD: -7.40%
• 6M: -7.40%
• 1Y: -16.38%
• 3Y*: 18.39%
• 5Y*: 6.60%
• 10Y*: 2.86%

*Multi-year figures are annualized to reflect compound growth (CAGR)

IDXX vs. T - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IDXX IDEXX Laboratories, Inc.	-17.05%	63.63%	-25.51%	36.06%	-38.04%	31.73%	91.43%	40.38%	18.95%	33.35%
T AT&T Inc.	-7.40%	13.97%	44.08%	-2.74%	5.76%	-8.09%	-21.37%	45.55%	-22.25%	-4.01%

Correlation

The correlation between IDXX and T is 0.00, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.00
Correlation (3Y) Calculated over the trailing 3-year period	0.07
Correlation (5Y) Calculated over the trailing 5-year period	0.15
Correlation (10Y) Calculated over the trailing 10-year period	0.15
Correlation (All Time) Calculated using the full available price history since Jun 24, 1991	0.18

The correlation between IDXX and T shifts across timeframes, from 0.00 (1 year) to 0.18 (all time), reflecting how their relationship changes across market environments.

Fundamentals

EPS IDXX : $18.08 T : $3.04
PE Ratio IDXX : 31.04 T : 7.39
PEG Ratio IDXX : 2.68 T : 0.31
PS Ratio IDXX : 7.65 T : 1.29
Total Revenue (TTM) IDXX : $4.45B T : $125.65B
Gross Profit (TTM) IDXX : $2.76B T : $105.41B
EBITDA (TTM) IDXX : $1.52B T : $54.70B

Return for Risk

IDXX vs. T — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

IDXX

IDXX Risk / Return Rank: 48
IDXX Sharpe Ratio Rank: 48
IDXX Sortino Ratio Rank: 49
IDXX Omega Ratio Rank: 47
IDXX Calmar Ratio Rank: 48
IDXX Martin Ratio Rank: 48

T

T Risk / Return Rank: 11
T Sharpe Ratio Rank: 11
T Sortino Ratio Rank: 12
T Omega Ratio Rank: 13
T Calmar Ratio Rank: 14
T Martin Ratio Rank: 4

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

IDXX vs. T - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for IDEXX Laboratories, Inc. (IDXX) and AT&T Inc. (T). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	IDXX	T	Difference
Sharpe ratio: Return per unit of total volatility	0.17	-0.75	+0.92
Sortino ratio: Return per unit of downside risk	0.70	-0.98	+1.68
Omega ratio: Gain probability vs. loss probability	1.09	0.89	+0.20
Calmar ratio: Return relative to maximum drawdown	0.22	-0.75	+0.98
Martin ratio: Return relative to average drawdown	0.46	-1.59	+2.05
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IDXX vs. T - Sharpe Ratio Comparison

The current IDXX Sharpe Ratio is 0.17, which is higher than the T Sharpe Ratio of -0.75. The chart below compares the historical Sharpe Ratios of IDXX and T, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	IDXX	T	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.17	-0.75	+0.92
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.01	0.28	-0.28
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.62	0.12	+0.49
Sharpe Ratio (All Time) Calculated using the full available price history	0.51	0.38	+0.13

Drawdowns

IDXX vs. T - Drawdown Comparison

The maximum IDXX drawdown since its inception was -81.42%, which is greater than T's maximum drawdown of -64.15%. Use the drawdown chart below to compare losses from any high point for IDXX and T.

Drawdown Indicators

	IDXX	T	Difference
Max Drawdown Largest peak-to-trough decline	-81.42%	-64.15%	-17.27%
Max Drawdown (1Y) Largest decline over 1 year	-31.04%	-21.87%	-9.17%
Max Drawdown (3Y) Largest decline over 3 years	-37.41%	-21.87%	-15.54%
Max Drawdown (5Y) Largest decline over 5 years	-54.00%	-32.01%	-21.99%
Max Drawdown (10Y) Largest decline over 10 years	-54.00%	-42.35%	-11.65%
Current Drawdown Current decline from peak	-26.81%	-21.87%	-4.94%
Average Drawdown Average peak-to-trough decline	-21.00%	-15.72%	-5.28%
Ulcer Index Depth and duration of drawdowns from previous peaks	15.03%	10.34%	+4.69%

Volatility

IDXX vs. T - Volatility Comparison

IDEXX Laboratories, Inc. (IDXX) has a higher volatility of 8.57% compared to AT&T Inc. (T) at 7.50%. This indicates that IDXX's price experiences larger fluctuations and is considered to be riskier than T based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IDXX	T	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.57%	7.50%	+1.07%
Volatility (6M) Calculated over the trailing 6-month period	19.89%	17.57%	+2.32%
Volatility (1Y) Calculated over the trailing 1-year period	41.46%	21.98%	+19.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	35.28%	23.97%	+11.31%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	33.01%	23.71%	+9.30%

Dividends

IDXX vs. T - Dividend Comparison

IDXX has not paid dividends to shareholders, while T's dividend yield for the trailing twelve months is around 4.93%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IDXX IDEXX Laboratories, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
T AT&T Inc.	4.93%	4.47%	4.87%	6.62%	6.66%	8.46%	7.23%	5.22%	7.01%	5.04%	4.51%	5.46%

Financials

Frequently Asked Questions

Can I hold both IDXX and T in my portfolio?

IDXX and T have a correlation of 0.00, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IDXX or T?

IDXX has higher volatility (8.57%) compared to T (7.50%). In terms of maximum drawdown, IDXX dropped -81.42% vs T's -64.15%.

Which has better risk-adjusted returns?

IDXX currently has the higher Sharpe Ratio (0.17 vs -0.75), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.